A. Gradually varying load
B. Non-reversing, no-load start
C. Reversing, light start
D. Reversing, heavy start
Related Mcqs:
- Which of the following applications always have some load whenever switched on ?
A. Vacuum cleaners
B. Fan motors
C. Pistol drills
D. All of the above - The speed/load characteristics of a universal motor is same as that of_____________?
A. A.C. motor
B. D.C. shunt motor
C. D.C. series motor
D. none of the above - Which of the following motors is used in a situation where load increases with speed ?
A. Induction motor
B. Three-phase series motor
C. Schrage motor
D. Hysteresis motor - In case of a reluctance motor, when the load is increased so that it cannot maintain synchronous speed the motor will_____________?
A. become unstable
B. draw excessive armature current and may burn out
C. fall out of synchronism and come to stand still
D. run as induction motor - Direction of rotation of a split phase motor can be reversed by reversing the connection of__________?
A. running winding only
B. starting winding only
C. either A. or (b)
D. both A. and (b) - Which of the following motors is preferred for tape-recorders ?
A. Shaded pole motor
B. Hysteresis motor
C. Two value capacitor motor
D. Universal motor - The speed of a universal motor is generally reduced by using_________?
A. gear trains
B. V-belts
C. brakes
D. chains - A.C. series motor as compared to D.C. series motor has__________?
A. smaller brush width
B. less number of field turns
C. more number of armature turns
D. less air gap
E. all of the above - Which of the following motors is used for unity power factor ?
A. Hysteresis motor
B. Schrage motor
C. Universal motor
D. Reluctance motor - In a universal motor, the most common cause of brush sparking is___________?
A. open armature winding
B. shorted armature winding
C. shorted field winding”
D. high commutator mica
E. all of the above
